init

server/dukang-api/src/modules/catalog/catalog.controller.ts

@@ -0,0 +1,22 @@
+import { Controller, Get, Param, Query } from '@nestjs/common';
+import { CatalogService } from './catalog.service';
+
+@Controller('catalog')
+export class CatalogController {
+  constructor(private readonly catalogService: CatalogService) {}
+
+  @Get('cities')
+  cities() {
+    return this.catalogService.listCities();
+  }
+
+  @Get('products')
+  products(@Query('aromaType') aromaType?: string) {
+    return this.catalogService.listProducts(aromaType);
+  }
+
+  @Get('products/:id')
+  product(@Param('id') id: string) {
+    return this.catalogService.getProduct(BigInt(id));
+  }
+}

server/dukang-api/src/modules/catalog/catalog.module.ts

@@ -0,0 +1,10 @@
+import { Module } from '@nestjs/common';
+import { CatalogController } from './catalog.controller';
+import { CatalogService } from './catalog.service';
+
+@Module({
+  controllers: [CatalogController],
+  providers: [CatalogService],
+  exports: [CatalogService],
+})
+export class CatalogModule {}

server/dukang-api/src/modules/catalog/catalog.service.ts

@@ -0,0 +1,41 @@
+import { Injectable } from '@nestjs/common';
+import { PrismaService } from '../../common/prisma/prisma.module';
+import { serializeBigInt } from '../../common/decorators/current-user.decorator';
+
+@Injectable()
+export class CatalogService {
+  constructor(private readonly prisma: PrismaService) {}
+
+  async listCities() {
+    const cities = await this.prisma.city.findMany({
+      where: { status: 'ACTIVE' },
+      include: { partner: { select: { companyName: true } } },
+    });
+    return serializeBigInt(cities);
+  }
+
+  async listProducts(aromaType?: string) {
+    const products = await this.prisma.product.findMany({
+      where: { status: 'ON_SALE', ...(aromaType ? { aromaType: aromaType as never } : {}) },
+      orderBy: { sortOrder: 'asc' },
+    });
+    return serializeBigInt(
+      products.map((p) => ({
+        ...p,
+        benefitAmount: p.benefitAmount ?? p.price,
+        price: Number(p.price),
+        benefitDisplay: Number(p.benefitAmount ?? p.price),
+      })),
+    );
+  }
+
+  async getProduct(id: bigint) {
+    const product = await this.prisma.product.findUnique({ where: { id } });
+    if (!product) return null;
+    return serializeBigInt({
+      ...product,
+      benefitAmount: product.benefitAmount ?? product.price,
+      price: Number(product.price),
+    });
+  }
+}